HAProxy

This template has been verified against real HAProxy backend traffic using Categraf's HAProxy input. The input can read either the HAProxy CSV stats page or the Runtime API socket.

Enable HAProxy stats

haproxy

frontend stats
    bind *:8404
    stats enable
    stats uri /stats
    stats refresh 10s

First make sure the CSV output is reachable:

bash

curl -fsS 'http://127.0.0.1:8404/stats;csv' | head

Categraf configuration

The configuration file is conf/input.haproxy/haproxy.toml:

toml

[[instances]]
uri = "http://127.0.0.1:8404/stats;csv"
ssl_verify = true
timeout = "5s"

A socket can be used as well:

toml

[[instances]]
uri = "unix:/run/haproxy/admin.sock"
timeout = "5s"

HAProxy 2.0 and above can also be built with the native Prometheus exporter and scraped by Categraf's Prometheus input, but the HAProxy By Categraf template in this directory is verified against the metric names of the Categraf HAProxy input. Keep sending real requests to the frontend/backend, otherwise the rate and response-code panels may stay empty.